Form for concrete window construction.



T. EMTMAN FORM FOR CONCRETE WINDOW CONSTRUCTION.

APPLIOATIO H FILED MAR. 22, 1911.

Patented Jan. 28, 1913.

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UNITED STATES PATENT OFFICE.

THEODORE EMTIVFAN, OF LOS ANGELES, CALIFORNIA.

FORM FOR CONCRETE WINDOW CONSTRUCTION.

Specification of Letters Patent.

Patented Jan.28,1913.

Application filed March 22, 1911- Sorta-1N0. 616,240.

form the necessary vertical pockets in which the window weights travel. This materially decreases the area of the window and the main object of the present invention is to provide a form whereby the pockets for the sash weights may be formed within the con crete, thereby enabling the use of a window frame of minimum width and thus securing themaximum size of. opening without enlarging the actual size of the opening in the concrete.

Other objects of the invention will appear hereinafter.

Referring to the drawings: Figurel is a front elevation of a window constructed in accordance with my invention. Fig. 2 is a vertical section on line 0c -o: Fig. 1 the sash and window casing being omitted, and showing the application of the form, the center panel of the form being omitted. Fig. 3 is a section on line W-m Fig. 2 on an enlarged scale; the center panel of the form being in position. Fig. 4 is a view similar to Flg. 3, showing a cross section of the finished concrete recess. Fig. 5. is a section on line 00 -00 Fig. 3. Fig. 6 is an enlarged section through a retaining bolt. Fig. 7 is a view similar to Fig. 6; the form and bolt being omitted, leaving. the nut tube in permanent position.

In carrying out the invention, the regular vform boards for the walls of the building are erected in the usual or any preferred manner, and referring especially to Fig. 3, 1 designates the. ordinary wooden form boards for the walls." At the window openings the form boards 1 extend somewhat beyond the edge of the opening, as clearly shownin Fig. 3, and a metal form proper 2, of single trough shape in section having an inner part and side parts provided with flanges, is placed vertically in position, resting against a center panel 3, the latter being of wood and laid between the wall fbrms 1 and having cleats 4 which extend beyond the wall forms 1, with blocks 5 which engage outside the wall forms 1 and hold the latter in position from spreading. In order to prevent collapse of the metal form 2, a wooden board 6is laid longitudinally against the inner wall of the form and a series of blocks 7 are placed between the center panel 3 and the board 6.

8 indicates strips of molding laid in the corners to give a. finish to the corners of the I window.

Tubes 9 are secured to the flanges of the metal form 2 bv bolts 10 which pass through the form 2 and through the-tubes 9 with a nut 11 on the inner end thereof which sup ports the tubes 9.

The concrete is poured with the parts in position as shown in Fig. 3, and after it has set, the panel 3 with its cleats'4 and blocks 5 is removed and then the bolts 1O are unscrewed from the nuts 11 and withdrawn, which prevents the withdrawal of the form 2, also the blocks 7 and board 6, leaving thetubes 9 and nuts 11 permanently embedded in the concrete at one side of the recess 12, as shown in Fig. 4.

As shown in Fig. 1, 13 designates the window frame which may be narrow as shown, and secured in position by bolts 14, the latter being screwed through the tubes 9 and into the embedded nuts 11, the pockets for the sash weights being formed by the recesses 12.

What I claim is:

1. A form for concrete window construction comprising a single vertical trough 'shaped form proper having an inner part,

and side parts provided with flanges, bolts inserted in the flanges and projecting therebeyond and provided with nuts, a vertical center panel, a vertical board laid against the inner wall of the trough shaped form, a series of transverse blocks between the center panel and the board, vertical side blocks, vertical wallboards between the side blocks and the center panel and the cross cleats.

2. A form for concrete window construction comprising a single vertical trough shaped form proper having an inner part, and side parts rovided with flanges, bolts inserted in the anges and projecting therebeyond and provided with nuts,.tubes surrounding the bolts between the flanges and the nuts, a vertical center panel, a vertical tween the flanges of the trough shaped form-l board-laid against the inner wall of the trough shaped form, a series of transverse blocks between the center panel and the board, vertical side blocks, vertical Wall boards between the side blocks and the center panel and the cross cleats. 3. A. form for concrete window construction comprising a single vertical trough shaped form proper having an inner part, and side parts provided with flanges, bolts inserted in the flanges and projecting therebeyond and provided with nuts, a vertical center panel, a vertical board laid against the inner wall of the trough shaped form, a I series of transverse blocks between the center panel and the board, vertical side blocks, vertical Wall boards between the side blocks 1 and the center panel, molding inserted be- I and the wall boards, and the cross cleats.

1. A form forconcrete window construction comprising a slngle vertical trough l shaped form proper hav ng an inner part, and side parts provided with flanges, bolts inserted in the flanges and projecting therebeyond and provided with nuts, tubes surrounding the bolts between the flanges and the nuts, a vertical center panel, a vertical board laid against the inner wall of the trough shaped form, a series of transverse blocks between the center panel and the board, vertical side blocks, vertical wall boards between the side blocks and the center panel, molding inserted between the flanges of the trough shaped form and the wall boards, and the cross cleats.

In testimonv whereof, I have hereunto set my hand at Los Angeles, California, this 23rd day of February, 1911.

THEODORE EMTMAN.

In presence of G. T. HAoKLar. F RANK. L. A. GRAHAM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

